From past records, a department store finds that 70% of the people who enter the store will make a purchase on Black Friday. Suppose that 3 customers are randomly selected, answer the following questions. What is the probability that exactly one out of three customers make a purchase? What is the probability that none of the customers make a purchase? What is the probability that at least one customer makes a purchase? Find the mean and
From past records, a department store finds that 70% of the people who enter the store will make a purchase on Black Friday. Suppose that 3 customers are randomly selected, answer the following questions. What is the probability that exactly one out of three customers make a purchase? What is the probability that none of the customers make a purchase? What is the probability that at least one customer makes a purchase? Find the mean and
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 15CR
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Question
From past records, a department store finds that 70% of the people who enter the store will make a purchase on Black Friday. Suppose that 3 customers are randomly selected, answer the following questions.
- What is the probability that exactly one out of three customers make a purchase?
- What is the probability that none of the customers make a purchase?
- What is the probability that at least one customer makes a purchase?
- Find the mean and standard deviation for the number of customers who make a purchase. Round your answers to one decimal place.
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